stevens



(No Model.)

W. H. STEVENS.

BICYCLE TIRE.

Patented Oct. 12, 1897.

Inventor. 7 i. P tfp l Witnesses.

' Attorney.

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parallel with the tread of the tire.

UNITED STATES PATENT OFFICE.

WILLIAM H. STEVENS, OF BUFFALO, ASSIGNOR OF ONE-HALF TO EDWARD T. STEVENS, OF SAME PLACE.

BICYCLE-TIRE.

SPECIFICATION forming part of Letters Patent No. 591,791, dated October 12, 1897. Application filed September 12, 1896. Serial No. 605,558. (No model.)

To aZZ whom it may concern:

Be it known that I, WILLIAM H. STEVENS, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Bicycle Tires; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in bicycle-tires, and particularly to that class known as armored tires.

The object of my invention is to provide an improved metallic armor for a double-tube tire Which is placed between the inner and outer tubes and which will effectually protect the inner or inflated tube from puncture.

My invention consists of an outer casin g or tube, an inner inflatable tube, a metallic armor lying between the inner and outer tubes, consisting of a'wire helix or spiral extending transversely around the inner tube either helically or in separate rings, forming a continuous yielding or elastic metallic envelop around the inner tube and within the outer tube, and a fiat strip of metal which occupies a diametric position within the helix or spiral In the drawings, Figure l is a fragmentary portion of my improved tire, a part of which is in central vertical longitudinal section. Fig. 2 is a vertical transverse section of the same. Fig. 3 is an enlarged detached end view of the wire helix or spiral with its flat metallic diametric strip, and Fig. 4 is a view similar to Fig. 1 of a modified form of tube.

Referring to the drawings, 1 is the outer casing or tube, preferably of rubber, having an attached inner lining 2, of canvas or other suitable fabric.

3 is the inner or inflatable tube, preferably of rubber, having an attached outer casing or envelop 4, of canvas or other suitable fabric.

5 is the helix or spiral, formed of tightlywound wire, which extends transversely around the inner tube either helically, as shown in Fig. 1, or in separate rings, as shown in' Fig. 4, forming a continuous yielding or elastic metallic armor around the inner tube and within the outer tube and resting in contact with the fabric lining 2 of the outer tube 1 and the fabric casing or envelop 4 of the inner tube 3. A fiat metallic strip 6 extends through the wire helix or spiral, its width being substantially the length 'of the inner diaineterpf the helix or spiral. Its flat surface is substantially parallel to the tread of the tire, as shown.

My improved metallic armor as arranged can be made of aluminium, if desired, for the sake of lightness.

I claim A bicycle-tire consisting ofan outer casing or tube, an inner inflatable tube, a metallic armor, lying between the outer and inner tubes, c'onsistin g of a wire helix or spiral, extending transversely around the inner tube either. helically or in separate rings, forming a continuous yielding or elastic metallic envelop around the inner tube and within" the outer tube and a flat stripof metal which occupies a diametric position'within the helix or spiral parallel with the tread of the tire.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM H. STEVENS.

Witnesses:

L. IWI. BEST, W. T. MILLER. 

